WASD sells extra keycaps, but I don't think they sell the clear ones for the CODE. Also, the multimedia keys just emit another keycode so you should be able to

WASD sells extra keycaps, but I don't think they sell the clear ones for the CODE. Also, the multimedia keys just emit another keycode so you should be able to reprogram them, depending on your OS. (e.g. xmodmap on Linux, as detailed here: https://wiki.debian.org/Keyboard/MultimediaKeys https://wiki.debian.org/Keyboard/MultimediaKeys)